static int ladder_enable_device()

in governors/ladder.c [132:160]

• 23 lines of code
• 5 McCabe index (conditional complexity)

static int ladder_enable_device(struct cpuidle_driver *drv,
				struct cpuidle_device *dev)
{
	int i;
	int first_idx = drv->states[0].flags & CPUIDLE_FLAG_POLLING ? 1 : 0;
	struct ladder_device *ldev = &per_cpu(ladder_devices, dev->cpu);
	struct ladder_device_state *lstate;
	struct cpuidle_state *state;

	dev->last_state_idx = first_idx;

	for (i = first_idx; i < drv->state_count; i++) {
		state = &drv->states[i];
		lstate = &ldev->states[i];

		lstate->stats.promotion_count = 0;
		lstate->stats.demotion_count = 0;

		lstate->threshold.promotion_count = PROMOTION_COUNT;
		lstate->threshold.demotion_count = DEMOTION_COUNT;

		if (i < drv->state_count - 1)
			lstate->threshold.promotion_time_ns = state->exit_latency_ns;
		if (i > first_idx)
			lstate->threshold.demotion_time_ns = state->exit_latency_ns;
	}

	return 0;
}